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patch 9.1.0113: duplicate code when cleaning undo stack

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Problem:  duplicate code when cleaning undo stack
Solution: refactor undo cleanup into a single public function

related: #13928

Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Christian Brabandt
2024-02-15 20:17:37 +01:00
parent f0d3d4a426
commit 9071ed8107
7 changed files with 36 additions and 28 deletions
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38
src/undo.c
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@ -123,6 +123,7 @@ static void serialize_visualinfo(bufinfo_T *bi, visualinfo_T *info);
static void unserialize_visualinfo(bufinfo_T *bi, visualinfo_T *info);
#endif
static void u_saveline(linenr_T lnum);
static void u_blockfree(buf_T *buf);
#define U_ALLOC_LINE(size) lalloc(size, FALSE)
@ -3472,7 +3473,7 @@ u_freeentry(u_entry_T *uep, long n)
/*
* invalidate the undo buffer; called when storage has already been released
*/
void
static void
u_clearall(buf_T *buf)
{
buf->b_u_newhead = buf->b_u_oldhead = buf->b_u_curhead = NULL;
@ -3483,6 +3484,30 @@ u_clearall(buf_T *buf)
buf->b_u_line_lnum = 0;
}
/*
* Free all allocated memory blocks for the buffer 'buf'.
*/
static void
u_blockfree(buf_T *buf)
{
while (buf->b_u_oldhead != NULL)
u_freeheader(buf, buf->b_u_oldhead, NULL);
vim_free(buf->b_u_line_ptr.ul_line);
}
/*
* Free all allocated memory blocks for the buffer 'buf'.
* and invalidate the undo buffer
*/
void
u_clearallandblockfree(buf_T *buf)
{
u_blockfree(buf);
u_clearall(buf);
}
/*
* Save the line "lnum" for the "U" command.
*/
@ -3562,17 +3587,6 @@ u_undoline(void)
check_cursor_col();
}
/*
* Free all allocated memory blocks for the buffer 'buf'.
*/
void
u_blockfree(buf_T *buf)
{
while (buf->b_u_oldhead != NULL)
u_freeheader(buf, buf->b_u_oldhead, NULL);
vim_free(buf->b_u_line_ptr.ul_line);
}
/*
* Check if the 'modified' flag is set, or 'ff' has changed (only need to
* check the first character, because it can only be "dos", "unix" or "mac").